Place the trophic levels in order of greatest amount of energy available (bottom of the pyramid/list) to least amount of energy available (top of the pyramid/list).

Secondary Consumers
Producers/Autotrophs
Apex predators/Quaternary Consumers
Primary Consumers
Tertiary Consumers

1. Producers/Autotrophs

2. Primary Consumers
3. Secondary Consumers
4. Tertiary Consumers
5. Apex predators/Quaternary Consumers